My pH keeps slowly rising, at one point it was the equivalent of 8.2 (off the top of my Taylor tester scale).
My TA is pretty stable at 50, CYA is around 32, CH is 120, Borates of around 50 and Temp of either 99 or 103°F (depending on whether we bathe with our little daughter or not).
I seem to have to keep adding Muriatic acid about once a week to keep bringing it back down, with similarly regular addition of Baking Soda to address the TA alteration this causes.
I can slow the pH rise by reducing my waterfall to a mere trickle, but it easily stops itself altogether when set so low, and the pH still rises just not as quickly.
I assume that I cannot leave a pH of 8.2+ unchecked..?
So, is it just one of the normal 'weekly' routines that a Spa owner must endure, in adding c.50 mL of 20°B Muriatic acid along with 45g of Baking Soda?
And when I add Bleach, I assume that increases pH, as Bleach has a pH of c.11..?
My SWG often creates slightly too much chlorine, so often I come to check the water, and the Chlorine level is 4.5 or higher.
(It is almost impossible to get it to sit at the right level. "2" makes the Ch level decrease, slowly at first then very quickly; yet "3" makes it climb towards 4.5).
Would a slowly increasing Chlorine level from a SWG be part of such a 'pH rise' issue?
Any thoughts or ideas would be very much appreciated.
Thank you - D